On February 9, 2018 at 20:01, crosen said...
Do you have approx. 5V across pins 2 and 5 on your matrix db9 port?
Solved....So I decided to write the string in lower case letters and lo and behold it worked. The manual states that commands are not case-sensitive but in Crestron's case they are......
[Link: keydigital.com]
